Reflector for headlights



s. SUITS 1,709,960

REFLECTORYFOR HEADLIGHTS April 23, 1929.

Filed May 15, 1928 2' sheets-sneer 1 IN VEN TOR:

Q ATTORNEY.

: A ril 23, 1929.

s. sun's 09,960 REFLECTOR FOR HEADLIGHTS "e Filed May 15,1928 2Shets-Sheet 2 E; E- E.

WITNESSES: 'I'NVENTORQ Patented Apr. 23, 12329.

REFLECTOR FOR HEADLIGHTS.

Application filed ,May 15,

This invention relates to a reflector for headlights.

The ob'ect of the invention 1s to provide an improvedheadlight-reflector. 7

Another object of the inventionis to provide a reflector which'may beconveniently and economically manufactured.-

Still another object of the invention is to provide a reflectorconstructed from a single piece of material and so formed that the raysemanating therefrom will not be reflected upwardly so as to cause glare,but will be directcd downwardly, forwardly and outwardly at the pointsrequired to be illuminated.

According to the invention, the reflector isparaboloidal in shape withprovision for a light source, one part of the reflector, without changeof contour, being pressed out from a point near the center of saidreflector and extended so as to assume a position at a point near itsperiphery slightly in advance of the position which it normally wouldhave so that the rays of light from the reflector are reflecteddownwardly, forwardly and outwardly.

The drawings illustrate an embodiment of the invention and the viewstherein are as follows:

Figure 1 is a side view partly in vertical section and shows theposition of the lamp and its reflective relation to the reflector faces,

Figure 2 is a front view of a headlight with a portion of the rim andlens broken away in order out portion of the reflector,

Figure 3 is a fragmentary vertical section and may be assumed to betaken on the line 3-3 of Figure 2, I

Figure a is a fragmentary rear view of a slightly modified arrangementof the pressed out portion and may be assumed to be taken looking in thedirection of the arrow in Figure i As illustrated in the drawings, aheadlight which has a casing 5 is shown to illustrate the manner inwhich the reflector 6 is mounted and the usual lens 7 which is securedin place in the casing by the rim 8. A socket 9 for the reception of anincandescent light bulb 11 of any conventional type is mounted in thecasing in the usual manner and the socket contains the usual contactswhich are electrically connected to any suitable source of to illustratethe shape of the pressed 1928.. Serial No. 277,873.

electric current (not The filament 12 ofthe electric-bulb 11 isapproximately at the focal point ofthe reflector.

The invention herein consists in the reflector and method ofconstructing the, same.-

As illustrated in Figure 3, theparaboloidal reflector is out alongthearcuate concentric line 13 and from the ends 'of this arcuate cut itis out along the curved lines 14 and 116tov the points 17 and 19 nearthe periphery of the reflector.

Without then changing the original shape of that part ofthe reflectorincluded between the lines 13, 1 and 16, so that its contour remainsunchanged, the same is pressed outwardly, as shown in Figure 1, so thatthe upper end thereof extends outwardly from the main body 6 of thereflector and the distance from the position formerly occupied by thepressed out portion gradually decreases downwardly so that the pointwhere the same contacts with the lens 7, designated by the numeral 21,will be slightly above its original unraised position. This in effectproduces a paraboloidal reflector with a section thereof standingoutward therefrom and which, while retaining its shape as part of theparaboloid, will have changed its relation with the focal point 12 forthe light bulb 11.

In order that the description may be more readily understood, let us nowconsider thepressed out portion which I will designate as 22, as thesub-reflector.

In Figure 1, the focal point of the reflector 6' is at the intersectionof lines 23 and 24 so that a ray of light emanating from the focus willstrike the reflector 6 at the point 26 and be reflected horizontally, asshown by the line 27. i

For the purpose of illustration, the filament has been shown as havingits rear edge in the focus and extending forwardly therefrom so thataray of light 28emanating from the tip of'the filament would strike the.re

nection with the rays from the main reflector,

6, give a long forward beam of light.

Figure 3 illustrates brackets 43 which may be placed between the upperedge of the sub reflector and the concentric portion 39 of the mainreflector in order that the sub-reflector may be kept in true positionand not moved 'into or out of relation with the main reflector by reasonof vibrations.

In Figure 4, supports 46 have been provided to take theplace of thebrackets 43 by cutting a portion of the sub reflector and bending thesame outward so that the outer ends thereof will rest against theportion 39 and maybe, if desired, secured thereto.

In practice, it has beenfound that the refiector gives a. long forwardbeam of light, also a downward light, and the'light spreads to bothsides at a point very close to a line drawn across the front ofthereflector.

Ofcourse, the reflector herein illustrated may be modified in variousways without departing from the invention herein set forth and hereafterclaimed.

The invention is hereby claimed as follows.

I claim A reflector for headlights comprising a paraboloidal body havingthe major portion of its lower half cut along curved sidelines and anupper arcuate line to form a deflector,

said deflector having its upper portion pressed forward while retainingits original contour, and the peripheraledge thereof integral with saidbody.

, In testimony whereof I have signed my name to this specification. r

- SEYMOUR sUrrs.

